322 lines
8.3 KiB
C
322 lines
8.3 KiB
C
/*
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* Copyright (c) 1994-2000
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* Paul Richards. All rights reserved.
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*
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* PC-98 port by Chiharu Shibata & FreeBSD(98) porting team.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* verbatim and that no modifications are made prior to this
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* point in the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name Paul Richards may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY PAUL RICHARDS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL PAUL RICHARDS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/socket.h>
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#include <machine/clock.h> /* DELAY() */
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <isa/isavar.h>
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#include <dev/lnc/if_lncvar.h>
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#include <dev/lnc/if_lncreg.h>
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static struct isa_pnp_id lnc_pnp_ids[] = {
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{0, NULL}
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};
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static bus_addr_t lnc_ioaddr_cnet98s[CNET98S_IOSIZE] = {
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0x000, 0x001, 0x002, 0x003, 0x004, 0x005, 0x006, 0x007,
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0x008, 0x009, 0x00a, 0x00b, 0x00c, 0x00d, 0x00e, 0x00f,
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0x400, 0x401, 0x402, 0x403, 0x404, 0x405, 0x406, 0x407,
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0x408, 0x409, 0x40a, 0x40b, 0x40c, 0x40d, 0x40e, 0x40f,
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};
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static int
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lnc_legacy_probe(device_t dev)
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{
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struct lnc_softc *sc = device_get_softc(dev);
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u_int16_t tmp;
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sc->portrid = 0;
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sc->portres = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &sc->portrid,
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lnc_ioaddr_cnet98s, CNET98S_IOSIZE,
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RF_ACTIVE);
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if (! sc->portres) {
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device_printf(dev, "Failed to allocate I/O ports\n");
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lnc_release_resources(dev);
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return (ENXIO);
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}
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isa_load_resourcev(sc->portres, lnc_ioaddr_cnet98s, CNET98S_IOSIZE);
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sc->lnc_btag = rman_get_bustag(sc->portres);
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sc->lnc_bhandle = rman_get_bushandle(sc->portres);
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/* Reset */
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tmp = lnc_inw(CNET98S_RESET);
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lnc_outw(CNET98S_RESET, tmp);
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DELAY(500);
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sc->rap = CNET98S_RAP;
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sc->rdp = CNET98S_RDP;
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sc->nic.mem_mode = DMA_FIXED;
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if ((sc->nic.ic = lance_probe(sc))) {
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sc->nic.ident = CNET98S;
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device_set_desc(dev, "C-NET(98)S");
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lnc_release_resources(dev);
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return (0);
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} else {
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lnc_release_resources(dev);
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return (ENXIO);
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}
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}
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static int
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lnc_isa_probe(device_t dev)
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{
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int pnp;
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pnp = ISA_PNP_PROBE(device_get_parent(dev), dev, lnc_pnp_ids);
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if (pnp == ENOENT) {
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/* It's not a PNP card, see if we support it by probing it */
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return (lnc_legacy_probe(dev));
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} else if (pnp == ENXIO) {
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return (ENXIO);
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} else {
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/* Found PNP card we support */
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return (0);
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}
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}
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static void
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lnc_alloc_callback(void *arg, bus_dma_segment_t *seg, int nseg, int error)
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{
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/* Do nothing */
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return;
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}
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static int
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lnc_isa_attach(device_t dev)
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{
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lnc_softc_t *sc = device_get_softc(dev);
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int err = 0;
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bus_size_t lnc_mem_size;
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device_printf(dev, "Attaching %s\n", device_get_desc(dev));
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sc->portrid = 0;
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sc->portres = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &sc->portrid,
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lnc_ioaddr_cnet98s, CNET98S_IOSIZE,
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RF_ACTIVE);
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if (! sc->portres) {
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device_printf(dev, "Failed to allocate I/O ports\n");
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lnc_release_resources(dev);
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return (ENXIO);
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}
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isa_load_resourcev(sc->portres, lnc_ioaddr_cnet98s, CNET98S_IOSIZE);
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sc->lnc_btag = rman_get_bustag(sc->portres);
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sc->lnc_bhandle = rman_get_bushandle(sc->portres);
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sc->drqrid = 0;
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sc->drqres = NULL;
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if (isa_get_irq(dev) == -1)
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bus_set_resource(dev, SYS_RES_IRQ, 0, 6, 1);
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sc->irqrid = 0;
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sc->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irqrid, 0, ~0, 1,
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RF_ACTIVE);
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if (! sc->irqres) {
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device_printf(dev, "Failed to allocate irq\n");
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lnc_release_resources(dev);
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return (ENXIO);
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}
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err = bus_setup_intr(dev, sc->irqres, INTR_TYPE_NET, lncintr,
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sc, &sc->intrhand);
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if (err) {
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device_printf(dev, "Failed to setup irq handler\n");
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lnc_release_resources(dev);
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return (err);
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}
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/* XXX temp setting for nic */
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sc->nic.mem_mode = DMA_FIXED;
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sc->nrdre = NRDRE;
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sc->ntdre = NTDRE;
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if (sc->nic.ident == CNET98S) {
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sc->rap = CNET98S_RAP;
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sc->rdp = CNET98S_RDP;
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} else if (sc->nic.ident == NE2100) {
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sc->rap = PCNET_RAP;
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sc->rdp = PCNET_RDP;
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sc->bdp = PCNET_BDP;
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} else {
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sc->rap = BICC_RAP;
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sc->rdp = BICC_RDP;
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}
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/* Create a DMA tag describing the ring memory we need */
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lnc_mem_size = ((NDESC(sc->nrdre) + NDESC(sc->ntdre)) *
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sizeof(struct host_ring_entry));
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lnc_mem_size += (NDESC(sc->nrdre) * RECVBUFSIZE) +
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(NDESC(sc->ntdre) * TRANSBUFSIZE);
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err = bus_dma_tag_create(NULL, /* parent */
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4, /* alignement */
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0, /* boundary */
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BUS_SPACE_MAXADDR_24BIT, /* lowaddr */
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BUS_SPACE_MAXADDR, /* highaddr */
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NULL, NULL, /* filter, filterarg */
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lnc_mem_size, /* segsize */
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1, /* nsegments */
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BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
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0, /* flags */
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busdma_lock_mutex, /* lockfunc */
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&Giant, /* lockarg */
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&sc->dmat);
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if (err) {
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device_printf(dev, "Can't create DMA tag\n");
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lnc_release_resources(dev);
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return (ENOMEM);
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}
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err = bus_dmamem_alloc(sc->dmat, (void **)&sc->recv_ring,
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BUS_DMA_NOWAIT, &sc->dmamap);
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if (err) {
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device_printf(dev, "Couldn't allocate memory\n");
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lnc_release_resources(dev);
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return (ENOMEM);
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}
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err = bus_dmamap_load(sc->dmat, sc->dmamap, sc->recv_ring, lnc_mem_size,
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lnc_alloc_callback, sc->recv_ring, BUS_DMA_NOWAIT);
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if (err) {
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device_printf(dev, "Couldn't load DMA map\n");
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lnc_release_resources(dev);
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return (ENOMEM);
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}
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/* Call generic attach code */
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if (! lnc_attach_common(dev)) {
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device_printf(dev, "Generic attach code failed\n");
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lnc_release_resources(dev);
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return (ENXIO);
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}
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/*
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* ISA Configuration
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*
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* XXX - Following parameters are Contec C-NET(98)S only.
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* So, check the Ethernet address here.
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*
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* Contec uses 00 80 4c ?? ?? ??
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*/
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if (sc->arpcom.ac_enaddr[0] == (u_char)0x00 &&
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sc->arpcom.ac_enaddr[1] == (u_char)0x80 &&
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sc->arpcom.ac_enaddr[2] == (u_char)0x4c) {
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lnc_outw(sc->rap, MSRDA);
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lnc_outw(CNET98S_IDP, 0x0006);
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lnc_outw(sc->rap, MSWRA);
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lnc_outw(CNET98S_IDP, 0x0006);
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#ifdef DIAGNOSTIC
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lnc_outw(sc->rap, MC);
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printf("ISACSR2 = %x\n", lnc_inw(CNET98S_IDP));
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#endif
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lnc_outw(sc->rap, LED1);
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lnc_outw(CNET98S_IDP, LED_PSE | LED_XMTE);
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lnc_outw(sc->rap, LED2);
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lnc_outw(CNET98S_IDP, LED_PSE | LED_RCVE);
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lnc_outw(sc->rap, LED3);
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lnc_outw(CNET98S_IDP, LED_PSE | LED_COLE);
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}
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return (0);
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}
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static int
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lnc_isa_detach(device_t dev)
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{
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lnc_softc_t *sc = device_get_softc(dev);
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int s = splimp();
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ether_ifdetach(&sc->arpcom.ac_if);
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splx(s);
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lnc_stop(sc);
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lnc_release_resources(dev);
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return (0);
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}
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static device_method_t lnc_isa_methods[] = {
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/* DEVMETHOD(device_identify, lnc_isa_identify), */
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DEVMETHOD(device_probe, lnc_isa_probe),
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DEVMETHOD(device_attach, lnc_isa_attach),
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DEVMETHOD(device_detach, lnc_isa_detach),
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#ifdef notyet
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DEVMETHOD(device_suspend, lnc_isa_suspend),
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DEVMETHOD(device_resume, lnc_isa_resume),
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DEVMETHOD(device_shutdown, lnc_isa_shutdown),
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#endif
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{ 0, 0 }
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};
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static driver_t lnc_isa_driver = {
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"lnc",
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lnc_isa_methods,
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sizeof(struct lnc_softc),
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};
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DRIVER_MODULE(lnc, isa, lnc_isa_driver, lnc_devclass, 0, 0);
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MODULE_DEPEND(lnc, isa, 1, 1, 1);
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MODULE_DEPEND(lnc, ether, 1, 1, 1);
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